Explore topic-wise MCQs in Javascript.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Javascript knowledge and support exam preparation. Choose a topic below to get started.

1.

The main difference between the variables declared with var and with let is __________

A. var is confined to a particular function but let is not
B. let is confined to a particular function but var is not
C. var defines values based on conditions but let does not
D. let doesn’t let you change the value of the variable
Answer» B. let is confined to a particular function but var is not
2.

The let keyword can be used ___________

A. as a substitute of var
B. as a block statement to define new variables
C. to define variables that are scoped to a single expression
D. all of the mentioned
Answer» C. to define variables that are scoped to a single expression